Stud



M. F. CARR.

STUD.

APPLICATION man MAR. a, 1921.

1 433- 7 3 Patented 00112.31, 1922.

Invenior: '0@@ F a? f:-

Patented @ct, Ell l.

COMPANY, or ceiasnrnen, e.

STUD.

Application filed March 8, 1921.

To all whomit may concern:

Be it known that I, F. CARR, a citizen of the United States, and a resident of Newton, in the county of Middlesex, Cord inonwealth of h lassa-chusetts, have invented an Improvement in Studs, of which the following description, in connection with the accompanying drawings, is a specification,

like characters on the drawings represent-- ing like parts.

This invention pertains to improvements in studs, and more particularly, though not exclusively, to improvements in studs of the general. character illustrated in United States Letters Patent No. 1,070,113, issued August 12, 1918, to Carr Fastener Company, assignee of Fred S. Carr. it is among the objects of the invention to provide a studof superior appearance, of great strength and of inexpensive construction.

in the drawings, which show a preferred form of one embodiment of my invention.

Figure 1 is an end view of a preferred form of stud;

Fig. 2 is a side elevation thereof;

Fig. 3 is a longitudinal, medial section therethrough, the screw portion being shown in elevation;

Fig. 4; is a diagrammatic view showing the parts of the stud prior to assembly; and

Fig. 5 is an end elevation of the stud from the screw end thereof.

Referring to the drawings and to the preferred form of my invention selected for illustrative purposes, I have shown a stud in.- cluding a screw having a threaded portion 6, a slotted head portion 7, a collar portion 8 and a shank portion 9. The preferred form of screw is preferably provided with a washer 10 fitting over the shank portion thereof and preferably secured theretohy the pressing of shaved portions 20 of the shank 9 against the bottom of the washer. In the preferred form of my invention illustrated, the shaved portions 20 are four in number and are formed by pressing a square die over the shank of the screw.

The head or cap portion of the stud is preferably formed to provide a continuous external ring 21, serving as the head of the stud proper and with a central depressed ortion 22 entering and fitting the slot in the head 7 of the screw. There may also be a Serial H0. 450,75

circular central depr 23 @373 lis im, urem a if J.

ession 23 to permit the use of screw having a relatively short head in the manufacture of stud having a cap portion of considerably greater length, and this without necessitating undue distortion of the metal by the deep depression in provision of an unduly the cap to fit the slot in the head of the screw.

pressed between the enlarged portions 25 of the head. and the flanged-over edges 24 of the rap.

.ien screw-driver is entered in the depression of the cap, it also enters the slot in the 1 is no 0. tic-n and the i ew screw driver.

err d he un do.

o. '1" of the screw, and therefore there ice of slippage between the cap poras the latter is turned 1e 1 have shown and described a preoOfillTQGlll, of my invention, it will ed that considerable changes may be me de therein without departing from the scope of my inventio in the following cla Claims: 1. A stud for stu r. ompris n, which is best defined d and socket fasteners in combination, screw portion having a head, a slot in said head, a washer 'Fi'ting over said sore said head and a a continuous pe w portion and underlycap portion providing Upheral ring to serve as the head of the stud and a central depressed portion fitting the s lot in the head of said screw, said cap also providing portions overlying; and flanged beneath said. washer,

thereby to hold said cap, said washer and stud in assembled relationship.

2. A stud for stu d and socket fasteners comprising, in combination, a screw portion havin a head, a slot fittin oversaid sore in head, a washer w portion and underly- 1 head and a cap portion providing a continuous peripheral ring to serve as the head of he stud and a central depressed portion fitting the slot in the head of said screw, said cap. also providing portions flanged beneath said washer, thereby to hold said cap, 1

said washer and stud in assembled relationship.

3. A stud for stu d and socket fasteners comprising, in combination, a screw having a cap portion overlying said head and interthreaded portion, a head. having a slot, iocked With the slot therein, said cap porand a shank portion, a Washer fitting over tion secured to said Washer by a lip flanged 10 said shank portion and held in assembled beneath said'washer.

relation to said screw by projecting shaved In testimony whereof, I have signed my or distorted portions of said shank pressed name to this specification.

against the under side of said Washer, and MOSES F CARR. 

